package com.upc.util;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Random;


public class OrderInfoUtil2_0 {
  /**
   * 构造授权参数列表
   *
   * @param pid
   * @param app_id
   * @param target_id
   * @return
   */
  public static Map<String, String> buildAuthInfoMap(String pid, String app_id, String target_id, boolean rsa2) {
    Map<String, String> keyValues = new HashMap<String, String>();

    // 商户签约拿到的app_id，如：2013081700024223
    keyValues.put("app_id", app_id);

    // 商户签约拿到的pid，如：2088102123816631
    keyValues.put("pid", pid);

    // 服务接口名称， 固定值
    keyValues.put("apiname", "com.alipay.account.auth");

    // 商户类型标识， 固定值
    keyValues.put("app_name", "mc");

    // 业务类型， 固定值
    keyValues.put("biz_type", "openservice");

    // 产品码， 固定值
    keyValues.put("product_id", "APP_FAST_LOGIN");

    // 授权范围， 固定值
    keyValues.put("scope", "kuaijie");

    // 商户唯一标识，如：kkkkk091125
    keyValues.put("target_id", target_id);

    // 授权类型， 固定值
    keyValues.put("auth_type", "AUTHACCOUNT");

    // 签名类型
    keyValues.put("sign_type", rsa2 ? "RSA2" : "RSA");

    return keyValues;
  }

  /**
   * 构造支付订单参数列表
   */
  public static Map<String, String> buildOrderParamMap(String app_id, boolean rsa2) {
    Map<String, String> keyValues = new HashMap<String, String>();

    keyValues.put("app_id", app_id);
    //此参数包含商品订单的详细信息，包括订单说明和商品价格
    keyValues.put("biz_content", "{\"timeout_express\":\"30m\",\"product_code\":\"QUICK_MSECURITY_PAY\",\"total_amount\":\"0.01\",\"subject\":\"获取诊断结果\",\"body\":\"我是测试数据\",\"out_trade_no\":\"" + getOutTradeNo() + "\"}");

    keyValues.put("charset", "utf-8");

    keyValues.put("method", "alipay.trade.app.pay");

    keyValues.put("sign_type", rsa2 ? "RSA2" : "RSA");

    keyValues.put("timestamp", getCurrentTime());

    keyValues.put("version", "1.0");

    return keyValues;
  }

  public static String getCurrentTime() {
    Date date = new Date();
    Timestamp timestamp = new Timestamp(date.getTime());
    return timestamp.toString().substring(0, 19);
  }

  /**
   * 构造支付订单参数信息
   *
   * @param map 支付订单参数
   * @return
   */
  public static String buildOrderParam(Map<String, String> map) {
    List<String> keys = new ArrayList<String>(map.keySet());

    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < keys.size() - 1; i++) {
      String key = keys.get(i);
      String value = map.get(key);
      sb.append(buildKeyValue(key, value, true));
      sb.append("&");
    }

    String tailKey = keys.get(keys.size() - 1);
    String tailValue = map.get(tailKey);
    sb.append(buildKeyValue(tailKey, tailValue, true));

    return sb.toString();
  }

  /**
   * 拼接键值对
   *
   * @param key
   * @param value
   * @param isEncode
   * @return
   */
  private static String buildKeyValue(String key, String value, boolean isEncode) {
    StringBuilder sb = new StringBuilder();
    sb.append(key);
    sb.append("=");
    if (isEncode) {
      try {
        sb.append(URLEncoder.encode(value, "UTF-8"));
      } catch (UnsupportedEncodingException e) {
        sb.append(value);
      }
    } else {
      sb.append(value);
    }
    return sb.toString();
  }

  /**
   * 对支付参数信息进行签名
   *
   * @param map 待签名授权信息
   * @return
   */
  public static String getSign(Map<String, String> map, String rsaKey, boolean rsa2) {
    List<String> keys = new ArrayList<String>(map.keySet());
    // key排序
    Collections.sort(keys);

    StringBuilder authInfo = new StringBuilder();
    for (int i = 0; i < keys.size() - 1; i++) {
      String key = keys.get(i);
      String value = map.get(key);
      authInfo.append(buildKeyValue(key, value, false));
      authInfo.append("&");
    }

    String tailKey = keys.get(keys.size() - 1);
    String tailValue = map.get(tailKey);
    authInfo.append(buildKeyValue(tailKey, tailValue, false));

    String oriSign = SignUtils.sign(authInfo.toString(), rsaKey, rsa2);
    String encodedSign = "";

    try {
      encodedSign = URLEncoder.encode(oriSign, "UTF-8");
    } catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    }
    return "sign=" + encodedSign;
  }

  /**
   * 要求外部订单号必须唯一。
   *
   * @return
   */
  private static String getOutTradeNo() {
    SimpleDateFormat format = new SimpleDateFormat("MMddHHmmss", Locale.getDefault());
    Date date = new Date();
    String key = format.format(date);

    Random r = new Random();
    key = key + r.nextInt();
    key = key.substring(0, 15);
    return key;
  }

}
